Clamping-collar for hose-pipes



(No Model() W. M. LUSK & W. H. HINKLE.

CLAMPING COLLAR POR HOSE PIPBS.

110.455,96?. Patented July 14,1891.

Wm BEBES- forth, the essential features of which UNITED STATES PATENTOFFICE.

WILLIAM M. LUSK AND WILLIAM H. HINKLE, OF FENTON, MICHIGAN.

`CLAMPlNG-COLLAR FOR HOSE-PIPES.

SPECIFICATION forming part of Letters Patent No. 455,967, dated July 14,1891. Application filed April 24, 1891. Serial No. 390,223. (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM M. LUsK and WILLIAM H. HINKLE, citizens ofthe United States, residing at Fenton, in the county of Genesee andState of Michigan, have invented certain new and useful Improvements inClamping-Collars for Hose-Pipes; and We do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to new and useful improvements inclamping-collars especially designed for attaching and coupling hose;and it consists in a certain construction and arrangement of parts, ashereinafter fully set being pointed out particularly in the claims.

The object of the invention is to producea two-part hinged andadjustable clamping-'collar by means of which the hose may be readilycoupled or attached to a hydrant or penstock and in which theconstruction is such that said collar may be readily clamped upon orremoved from a line of hose at any point in said line. This obj ect isattained by the construction illustrated in the accompanying drawings,in which- Figure l is a perspective view of our improvedclamping-collar, showing the lockinglever thrown up in position beforeclamping the collar upon the hose. Fig. 2 is a central cross-sectionthrough the collar clamped. upon a section of hose. Fig. 3 is a sideelevation showing a portion of the collar on the hose and a hingedsegment of the collarthrown out in position, as when placing the collarupon the hose. Fig. 4 is a reduced longitudinal section through twosections of hose secured to an inner coupling-tube by two of ourclamping-collars, all parts being in section. Fig. 5 is an edgeelevation of the clamping-collar, showing the curved rack, by means ofwhich the circumferential adjustment of said collar is effected.

Our clamping-collar is composed of two parts A and B, made of anysuitable spring metal. The part B of the collar is provided with there-enforcing-plate C attached thereto, one end of said plate having theintegrallugs a and the opposite end being'provided with the integrallugs e, saidlugs projecting outwardly from the face of said plate atright angles thereto.

Between the lugs a of the plate C is hinged one end of the part A of thecollar, the end portion b of the part B extending by the hinged pointand lapping onto the part A, thereby strengthening the hinge andpreventing a sharp angle at that point when the collar is clamped uponthe hose, whereby a uniform curve to the collar is maintained, causingit to bear alike on all points of the encircled hose.

D indicates the curved locking-lever, the bifurcated end d of which isprovided with the pins c, projecting from its outer face, said pinsbeing adapted to engage in the slots or notches t' in the lugs e, (seeFig. 3,) whereby said lever is detachably pivoted thereto.

E indicates a curved rack, ou eend of which is pivoted at o in thebifurcated end of the lever D, the opposite end df said rack carryingthe teeth fu, passing through an aperture in the plate f, secured to thefree end of the part A ofthe collar, which overlaps the free end of thepart B thereof, the teeth of said rack being adapted to engage the underedge of the bridge s of the plate f, clearly shown in Figs. l, 2, and 5,whereby said parts are detachabl y and adj ustably coupled.

To apply this improved collar to a hose the lever D is thrown up to theposition shown in Fig. 1 and is then detached from the lugs c and thepart A swung out to the position shown in Fig. 3, the hose H placed inthe part B of the collar, the part A swung back into place, and the pinsc of the leverD re-engaged with the lugs e. The lever D is then throwndown, drawing upon the rack E and contracting the collar upon the hose,compressing it firmly around the gasket F or other coupling to which thehose is to be attached, as clearly shown in Fig. 2. The leverD is curvedto con form to the curve of the collar, and is adapted to tit closelythereto when locked, its free end lying behind the hinge @,/which formsa guard therefor and prevents the end of said lever catching anyobstruction and be- IOO coming accidentally unlocked as the hose isdrawn along.

By employing the bifurcated lever D and pivoting the end of the rack Ein the fork thereof above the pivotal point of the lever to the lugs e astraight leverage pull is eX- erted to contract the collar when saidlever is thrown down, enabling the hose to be clamped with great force,and when in the operation 'of clamping the collar upon the hose by meansof said lever the pivotal point o of the rack is carrled past a linefrom the point of engagement of the rack with `the plate f, through thecenter of the bearing-pins c, said lever is drawn down against thecollar by the resistance of the collar andV hose, insuringasecure andperfect locking of the clamp.

When clamping the collar upon a. hose, should it be found too large ortoo small to make aperfect coupling, the lever D is thrown up and itspins c disengaged from the lugs e, and the part A swung out, as shown inFig. 3. The rack may then be adjusted through the plate f, as desired,and 1re-engaged with said plate in the proper notch. The parts are thenreturned to their former position and the locking-lever thrown down toclamp the collar upon the hose, as before described. This feature ofadjustment adapt-s the collar to various sizes of hose, enabling aperfect joint to be eected under all conditions of variation.

In coupling two sections of hose together, as shown in Fig. 4, theopposite ends of the gasketFareinsertedintheadjacentendsofthe meetingsections. A collar is thenl clamped upon each of the meeting ends of thehose, whereby a tight and perfect coupling is made.

By forming a two-part hinged collar it may be applied to the hose at anypoint of the line and does not require to be slipped over the end of thehose in order to place it thereon, as is the case with collars of thisclass that are formed integral, enabling the collar to be employed forclosing a leak, as well as to couple the sections of hose, as showninFig. 4.

This improved clamping-collar may also be employed to attach a nozzle tothe end of the hose, as will be readily understood.

Having thus fully set forth our invention, what we claim as new, anddesire to secure by Letters Patent, is

1. A hose clamp comprising a twopart spring-metal collar, one partoverlapping the other, and said parts being hinged together at'thatpoint, in conjunction with a curved lever having a curved rack-barpivoted thereto, said rack-bar being adj ustably attached to the freeend of one of the collar-sections, the

curved lever being detachably coupled to the adjacent collar-section,substantially as specified.

2. In a hose-clamp, the two-part springmetal collar hinged together, thefree swinging end of one part adapted to lap onto the free end of theadjacent part, combined with the curved lever having the toothed rackpivoted thereto, said toothed rack having an ad' j ustable anddetachable connection with the swinging end of one of thecollar-sections, the locking-lever having a pivotal detachableconnection with the opposite collar-section.

In testimony whereof:l We affix our signatures in presence of twowitnesses.

WILLIAM M. LUSK. NVILLIAM II. IIINKLE.

Witnesses:

H. B. LATOURETTE, L. L. BOOTH.

